Explore BrainMass
Share

Memory storage and bit density

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

A hard disk contains four Platters. Each side of the platter is coated with a magnetic oxide, allowing data to be stored on it. The platters are 3.5 inches in diameter. If the hard disk has a capacity of 800 GB and 80% of the platter surface is used for data storage, what is the bit density per square inch?

© BrainMass Inc. brainmass.com October 25, 2018, 8:14 am ad1c9bdddf
https://brainmass.com/engineering/electrical-engineering/memory-storage-and-bit-density-531896

Solution Preview

Since the hard disk contains four platters and each side of the platter is used for storing data on it, we have in total (4*2), that is, 8 platter side surfaces to store the data.

As the platters are 3.5 inches in diameter, surface area of one side of the platter = (22/7)*(3.5*3.5)/4 [Using ...

Solution Summary

Step by step computations shown along with explanation.

$2.19
See Also This Related BrainMass Solution

A case study on the Matrix Semiconductor: which markets they should pursue, if they should develop One Time Programmable (OTP) or Read/Write chips and which business model they should use in their business.

Case Study on "Matrix Semiconductor"

Complete the following written assignment of "Matrix Semiconductor"

1. What markets should the company pursue?
2. Should Matrix develop an OTP or read/write product?
3. Which business model makes the most sense?

View Full Posting Details